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KS0108 multi-chip driver thanks to doc_rob.

remotes/origin_old/release/v2.9
inmarket 6 years ago
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01fd5f3c90
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09402b6bde
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  1. 1
      changelog.txt
  2. 394
      drivers/gdisp/KS0108/board_KS0108_example.h
  3. 2
      drivers/gdisp/KS0108/driver.mk
  4. 327
      drivers/gdisp/KS0108/gdisp_lld_KS0108.c
  5. 18
      drivers/gdisp/KS0108/gdisp_lld_config.h

1
changelog.txt
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@ -35,6 +35,7 @@ FEATURE: Added UC1601s driver
FIX: Fixed issues with the STM746-Discovery board with ChibiOS
FEATURE: Added partial definition for the STM32F469i-Discovery board
FIX: Fixed issue where the variable type of the syncflags of the STM32LTDC driver was too small
FEATURE: Added KS0108 driver
*** Release 2.7 ***

394
drivers/gdisp/KS0108/board_KS0108_example.h
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@ -0,0 +1,394 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/* KS0107/0108 Driver
* Pinout: There are at least two different Pinouts!
* Version 1:
* 1 - CS1 High Active
* 2 - CS2 High Active
* 3 - GND
* 4 - 5V
* 5 - CONTRAST
* 6 - RS(=DC) High = Data, Low = Command
* 7 - R/W High = Read, Low = Write
* 8 - E Data is KS0108_latched at the falling Edge
* 9..16 - D0..7
* Version 2:
* 1 - GND
* 2 - 5V
* 3 - Vo (Operating Voltage for LCD)
* 4 - RS High = Data, Low = Command
* 5 - R/W High = Read, Low = Write
* 6 - E Data is KS0108_latched at the falling Edge
* 7..14 - D0..7
* 15 - CS1 High Active
* 16 - CS2 High Active
* 17 - /RST Low Active
* 18 - Vout (Output voltage for LCD)
* 19 - LEDA
* 20 - LEDK
*
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
// My Settings
#define GDISP_SCREEN_HEIGHT 64
#define GDISP_SCREEN_WIDTH 128
#define KS0108_NEED_READ FALSE
#define KS0108_HAS_RESET FALSE
#define KS0108_NEED_BACKLIGHT FALSE
#define KS0108_NEED_PWMBACKLIGHT FALSE
#define KS0108_NOP_DLY TRUE //doesn't work for me without!
#define LINE_D0 PAL_LINE(GPIOB, 0U)
#define LINE_D1 PAL_LINE(GPIOB, 1U)
#define LINE_D2 PAL_LINE(GPIOB, 2U)
#define LINE_D3 PAL_LINE(GPIOB, 3U)
#define LINE_D4 PAL_LINE(GPIOB, 4U)
#define LINE_D5 PAL_LINE(GPIOB, 5U)
#define LINE_D6 PAL_LINE(GPIOB, 6U)
#define LINE_D7 PAL_LINE(GPIOB, 7U)
#define LINE_BUSY PAL_LINE(GPIOB, 7U)
#define LINE_CS1 PAL_LINE(GPIOB, 8U)
#define LINE_CS2 PAL_LINE(GPIOB, 9U)
#define LINE_E PAL_LINE(GPIOB, 10U)
#define LINE_DC PAL_LINE(GPIOB, 11U)
#if KS0108_NEED_READ
#define LINE_RW PAL_LINE(GPIOB, 12U)
#endif
#if KS0108_NEED_BACKLIGHT
#define LINE_BL PAL_LINE(GPIOB, 13U)
#endif
#if KS0108_HAS_RESET
#define LINE_RESET PAL_LINE(GPIOB, 13U)
#endif
typedef struct {
ioline_t CS1; // Chip Select1 PIN
ioline_t CS2; // Chip Select2 PIN
ioline_t DC; // Register selector PIN
ioline_t E; // Enable PIN
ioline_t BUSY; // Busy PIN (Same as D[7])
#if KS0108_NEED_READ
ioline_t RW; // Read/Write PIN
#endif
#if KS0108_HAS_RESET
ioline_t RST; // Reset PIN
#endif
#if KS0108_NEED_BACKLIGHT
ioline_t BL; // Backlight PIN
#endif
ioline_t D[8];
ioline_t CS[CHIPS];
} lcd_pins_t;
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
static const lcd_pins_t lcdpins = {
LINE_CS1,
LINE_CS2,
LINE_DC,
LINE_E,
LINE_BUSY,
#if KS0108_NEED_READ
LINE_RW,
#endif
#if KS0108_HAS_RESET
LINE_RST,
#endif
#if KS0108_NEED_BACKLIGHT
LINE_BL,
#endif
{
LINE_D0,
LINE_D1,
LINE_D2,
LINE_D3,
LINE_D4,
LINE_D5,
LINE_D6,
LINE_D7
},
{
LINE_CS1,
LINE_CS2
}
};
static GFXINLINE void init_board(GDisplay* g){
(void) g;
g->board = 0;
int ii;
for (ii = 0; ii < CHIPS; ii++){
palSetLineMode(lcdpins.CS[ii], PAL_MODE_OUTPUT_PUSHPULL);
palClearLine(lcdpins.CS[ii]);
}
palSetLineMode(lcdpins.DC, PAL_MODE_OUTPUT_PUSHPULL);
palClearLine(lcdpins.DC);
palSetLineMode(lcdpins.E, PAL_MODE_OUTPUT_PUSHPULL);
palSetLine(lcdpins.E);
#if KS0108_NEED_READ
palSetLineMode(lcdpins.RW, PAL_MODE_OUTPUT_PUSHPULL);
palClearLine(lcdpins.RW);
#endif
#if KS0108_HAS_RESET
palSetLineMode(lcdpins.RST, PAL_MODE_OUTPUT_PUSHPULL);
palSetLine(lcdpins.RST);
#endif
for(ii = 0; ii < 8; ii++) {
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL);
palClearLine(lcdpins.D[ii]);
}
#if KS0108_NEED_BACKLIGHT
#if KS0108_NEED_PWMBACKLIGHT
palSetLineMode(lcdpins.BL, PAL_MODE_ALTERNATE(1));
#else
palSetLineMode(lcdpins.BL, PAL_MODE_OUTPUT_PUSHPULL);
#endif
#endif
}
static GFXINLINE void post_init_board(GDisplay *g) {
(void) g;
}
static GFXINLINE void setpin_reset(GDisplay *g, bool_t state) {
(void) g;
(void) state;
#if KS0108_HAS_RESET //Make Hardware Reset
if (state)
palClearLine(lcdpins.RST);
else
palSetLine(lcdpins.RST);
#endif
}
static GFXINLINE void set_backlight(GDisplay *g, uint8_t percent) {
(void) g;
(void) percent;
}
static GFXINLINE void acquire_bus(GDisplay *g) {
(void) g;
}
static GFXINLINE void release_bus(GDisplay *g) {
(void) g;
}
void KS0108_delay(uint16_t microsec){
#if KS0108_NOP_DLY
uint16_t cn;
for (cn=0;cn< microsec;cn++){
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
asm("nop");asm("nop");asm("nop");asm("nop");
//asm("nop");asm("nop");asm("nop");asm("nop");
//asm("nop");asm("nop");asm("nop");asm("nop");
//1us
}
#else
gfxSleepMicroseconds(microsec);
#endif
}
static GFXINLINE void KS0108_latch(void){
palClearLine(lcdpins.E);
KS0108_delay(1);
palSetLine(lcdpins.E);
}
static GFXINLINE void KS0108_write(uint8_t value){
int ii;
for(ii = 0; ii < 8; ii++){
if(value & (1 << ii))
palSetLine(lcdpins.D[ii]);
else
palClearLine(lcdpins.D[ii]);
}
KS0108_delay(1);
}
static GFXINLINE void KS0108_select(uint8_t chip){
uint8_t ii;
KS0108_delay(1);
for (ii = 0; ii < CHIPS; ii++){
if (ii == chip)
palSetLine(lcdpins.CS[ii]);
}
KS0108_delay(1);
}
static GFXINLINE void KS0108_unselect(void){
uint8_t ii;
KS0108_delay(1);
for (ii = 0; ii < CHIPS; ii++){
palClearLine(lcdpins.CS[ii]);
}
}
/*
#if KS0108_NEED_READ //Hardware Read ############## WORKS more or less
static GFXINLINE uint8_t read_KS0108(void) {
uint8_t ii, data=0;
for(ii = 0; ii < 8; ii++)
palSetLineMode(lcdpins.D[ii], PAL_MODE_INPUT); //Set pads to input
palSetLine(lcdpins.RW);
KS0108_delay(1);
palClearLine(lcdpins.E);
KS0108_delay(1);
palSetLine(lcdpins.E);
KS0108_delay(1);
// palClearLine(lcdpins.RW);
// KS0108_delay(1);
// palSetLine(lcdpins.RW);
// KS0108_delay(1);
for(ii = 0; ii < 8; ii++){
if (palReadLine(lcdpins.D[ii]) == PAL_HIGH){ //Read output
data |= (1<<ii);
}
}
// palClearLine(lcdpins.E);
palClearLine(lcdpins.RW); //Write again
for(ii = 0; ii < 8; ii++) {
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL); //Set pads to output
}
return data;
}
#endif
*/
#if KS0108_NEED_READ //Hardware Read ########### needs more testing but my display is broken
static GFXINLINE uint8_t read_KS0108(void) {
uint8_t ii, data=0;
for(ii = 0; ii < 8; ii++)
palSetLineMode(lcdpins.D[ii], PAL_MODE_INPUT); //Set pads to input
palSetLine(lcdpins.RW);
KS0108_delay(1);
palClearLine(lcdpins.DC);
KS0108_delay(1);
while (palReadLine(lcdpins.BUSY)); //Wait for busy flag
palSetLine(lcdpins.DC);
/*
KS0108_delay(2);
KS0108_latch();
KS0108_delay(2);
//KS0108_latch();
//KS0108_delay(1);
*/
palClearLine(lcdpins.RW);
KS0108_delay(2);
palSetLine(lcdpins.RW);
KS0108_delay(1);
palClearLine(lcdpins.DC);
KS0108_delay(1);
while (palReadLine(lcdpins.BUSY)); //Wait for busy flag
//KS0108_delay(7);
palSetLine(lcdpins.DC);
//KS0108_delay(1);
//KS0108_latch();
//KS0108_delay(3);
KS0108_delay(1);
for(ii = 0; ii < 8; ii++){
if (palReadLine(lcdpins.D[ii]) == PAL_HIGH) //Read output
data |= (1<<ii);
}
// palClearLine(lcdpins.E);
palSetLine(lcdpins.DC);
palClearLine(lcdpins.RW); //Write again
for(ii = 0; ii < 8; ii++) {
palSetLineMode(lcdpins.D[ii], PAL_MODE_OUTPUT_PUSHPULL); //Set pads to output
}
return data;
}
#endif
static GFXINLINE void write_data(GDisplay* g, uint16_t data){
(void)g;
uint8_t bit, displayData;
#if !KS0108_NEED_READ
uint8_t *p;
#endif
palSetLine(lcdpins.DC);
KS0108_select((uint8_t)(data>>8));
#if KS0108_NEED_READ
displayData=read_KS0108();
#else
p = RAM(g) + (GDISP_SCREEN_WIDTH*(g->p.y >> 3)) + g->p.x;
displayData = *p;
#endif
bit = 1 << (g->p.y & 7); //Get Page bit
if ((uint8_t)data){ //set bit
KS0108_write(displayData | bit);
#if !KS0108_NEED_READ
*p = (displayData | bit);
#endif
KS0108_latch();
} else {
KS0108_write(displayData & ~bit);
#if !KS0108_NEED_READ
*p = (displayData & ~bit);
#endif
KS0108_latch();
}
KS0108_delay(2); //one is too short!
KS0108_unselect(); //Important
}
static GFXINLINE void write_cmd(GDisplay* g, uint16_t cmd){
(void)g;
palClearLine(lcdpins.DC);
KS0108_select((uint8_t)(cmd>>8));
KS0108_write((uint8_t)cmd);
KS0108_latch();
KS0108_unselect(); //Important
}
static GFXINLINE void setreadmode(GDisplay *g) {
(void) g;
}
static GFXINLINE void setwritemode(GDisplay *g) {
(void) g;
}
static GFXINLINE uint16_t read_data(GDisplay *g) {
(void) g;
return 0;
}
#endif /* _GDISP_LLD_BOARD_H */

2
drivers/gdisp/KS0108/driver.mk
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@ -0,0 +1,2 @@
GFXINC += $(GFXLIB)/drivers/gdisp/KS0108
GFXSRC += $(GFXLIB)/drivers/gdisp/KS0108/gdisp_lld_KS0108.c

327
drivers/gdisp/KS0108/gdisp_lld_KS0108.c
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@ -0,0 +1,327 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#include "gfx.h"
#if GFX_USE_GDISP
/* Robert Offner 2017
* This is a driver for the KS0107 Displays.
* It should work with displays up to 240 pixel in width and 64 pixel in height
* ATTENTION some newer displays on ebay look like KS0107 Type but they're not!
* They use a new controller: ST7920. These are easy to identify: NO CS pin but
* a PSB Pin which switches from parallel to serial communication mode.
* If it cost less than 10.- it is probably a ST7920.
* Features: Well not much. For now write pixel to display and
* Read from Display / Buffer in RAM. Buffer in Ram is much faster than
* readback!
* I am trying to get the auto increment feature somehow implemented. It
* basically means if you start at x=0 and continue with x=1, x=2,... you don't
* have to write the address just data.
*
* Version: 0.3
*
* History:
* v0.4
* .) Cleanup by uGFX team. Code needs a lot of work.
*
* v0.3
* .) Removed initialization of g->priv because it is already done by uGFX.
*
* v0.2
* .) Cleanup,
* .) changed osalThreadSleep to gfxSleepMicroseconds(x)
* ATTENTION: for gfxSleepMicroseconds to work on chibios you have to
* increase CH_CFG_ST_FREQUENCY to 1000000 and probably CH_CFG_ST_RESOLUTION
* to 32 bit (not tested because STM32F103 doesn't have a 32 bit timer
* .) changed lcdbuf to g->priv
*
* v0.1 Initial Release
*/
#define GDISP_DRIVER_VMT GDISPVMT_KS0108
#include "gdisp_lld_config.h"
#include "../../../src/gdisp/gdisp_driver.h"
#include "board_KS0108.h"
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
#ifndef GDISP_SCREEN_HEIGHT
#define GDISP_SCREEN_HEIGHT 64
#endif
#ifndef GDISP_SCREEN_WIDTH
#define GDISP_SCREEN_WIDTH 128
#endif
#define CHIPS (GDISP_SCREEN_WIDTH/64)
#if !KS0108_NEED_READ
#define BUFFSZ (GDISP_SCREEN_HEIGHT/8 * GDISP_SCREEN_WIDTH)
#define RAM(g) ((uint8_t *)g->priv)
#endif
#ifndef GDISP_INITIAL_CONTRAST
#define GDISP_INITIAL_CONTRAST 50
#endif
#ifndef GDISP_INITIAL_BACKLIGHT
#define GDISP_INITIAL_BACKLIGHT 100
#endif
// KS0108 Commands
#define KS0108_CHIP1_ON 0x003F
#define KS0108_CHIP2_ON 0x013F
#define KS0108_DISP1START 0x00C0
#define KS0108_DISP2START 0x01C0
#define KS0108_DISP1OFF 0x003E
#define KS0108_DISP2OFF 0x013E
#define KS0108_SET_ADDR 0x0040
#define KS0108_SET_PAGE 0x00B8
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
#ifndef write_data_repeat
#define write_data_repeat(g, data, count) { int i; for (i = 0; i < count; ++i) write_data (g, data); }
#endif
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
#if !KS0108_NEED_READ
// The private area is the display surface.
g->priv = gfxAlloc(BUFFSZ);
#else
g->priv = 0;
#endif
// Initialise the board interface
init_board(g);
#if KS0108_HAS_RESET //Make Hardware Reset
setpin_reset(g, TRUE);
gfxSleepMilliseconds(120);
setpin_reset(g, FALSE);
#endif
gfxSleepMilliseconds(120);
write_cmd(g, KS0108_DISP1OFF);
gfxSleepMilliseconds(1);
write_cmd(g, KS0108_DISP2OFF);
gfxSleepMilliseconds(1);
write_cmd(g, KS0108_CHIP1_ON); //0x3F Chip1
gfxSleepMilliseconds(1);
write_cmd(g, KS0108_CHIP2_ON); //0x3F Chip2
gfxSleepMilliseconds(1);
write_cmd(g, KS0108_DISP1START); //0xC0 Chip1
gfxSleepMilliseconds(1);
write_cmd(g, KS0108_DISP2START); //0xC0 Chip2
gfxSleepMilliseconds(1);
// Finish Init
post_init_board(g);
#if KS0108_NEED_BACKLIGHT
// Turn on the back-light
set_backlight(g, GDISP_INITIAL_BACKLIGHT);
#endif
// Initialise the GDISP structure
g->g.Width = GDISP_SCREEN_WIDTH;
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Orientation = GDISP_ROTATE_0;
g->g.Powermode = powerOn;
g->g.Backlight = GDISP_INITIAL_BACKLIGHT;
g->g.Contrast = GDISP_INITIAL_CONTRAST;
return TRUE;
}
GFXINLINE void KS0108_goto(GDisplay* g, ) {
}
static void set_viewport(GDisplay *g) {
uint16_t pg;
uint16_t chip;
pg = g->p.y >> 3;
chip = (g->p.x >> 6) << 8;
write_cmd(g, KS0108_SET_PAGE | chip | pg); // (0xB8) - Set page
write_cmd(g, KS0108_SET_ADDR | chip | g->p.x); // (0x40) - Set x Address
}
LLDSPEC void gdisp_lld_write_color(GDisplay *g) {
uint16_t data;
data = (g->p.x >> 6) << 8; // Set the chip
if (g->p.color != White)
data |= 0x01; // set dot
write_data(g, data);
}
LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) {
set_viewport(g);
gdisp_lld_write_color(g);
}
#if GDISP_HARDWARE_STREAM_WRITE
LLDSPEC void gdisp_lld_write_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
}
LLDSPEC void gdisp_lld_write_stop(GDisplay *g) {
release_bus(g);
}
#endif
#if GDISP_HARDWARE_STREAM_READ
LLDSPEC void gdisp_lld_read_start(GDisplay *g) {
acquire_bus(g);
set_viewport(g);
setreadmode(g);
dummy_read(g);
}
LLDSPEC color_t gdisp_lld_read_color(GDisplay *g) {
uint16_t data;
data = read_data(g);
return gdispNative2Color(data);
}
LLDSPEC void gdisp_lld_read_stop(GDisplay *g) {
setwritemode(g);
release_bus(g);
}
#endif
#if GDISP_HARDWARE_FILLS
LLDSPEC void gdisp_lld_fill_area(GDisplay *g) {
uint8_t data, j;
set_viewport(g);
if (g->p.color != White) {
data = 0xFF; // set dot
}
else {
data = 0; // clr dot
}
for (j=0; j < (g->p.cy)/8; j++) {
write_data_repeat(g, data, (g->p.cx));
(g->p.cy) +=8;
set_viewport(g);
}
}
#endif // GDISP_HARDWARE_FILLS
#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL
LLDSPEC void gdisp_lld_control(GDisplay *g) {
switch(g->p.x) {
case GDISP_CONTROL_POWER:
if (g->g.Powermode == (powermode_t)g->p.ptr)
return;
switch((powermode_t)g->p.ptr) {
case powerOff:
acquire_bus(g);
write_index(g, 0x28);
gfxSleepMilliseconds(10);
write_index(g, 0x10);
release_bus(g);
break;
case powerOn:
acquire_bus(g);
write_index(g, 0x11);
gfxSleepMilliseconds(120);
write_index(g, 0x29);
release_bus(g);
if (g->g.Powermode != powerSleep)
gdisp_lld_init(g);
break;
case powerSleep:
acquire_bus(g);
write_index(g, 0x28);
gfxSleepMilliseconds(10);
write_index(g, 0x10);
release_bus(g);
break;
default:
return;
}
g->g.Powermode = (powermode_t)g->p.ptr;
return;
case GDISP_CONTROL_ORIENTATION:
if (g->g.Orientation == (orientation_t)g->p.ptr)
return;
switch((orientation_t)g->p.ptr) {
case GDISP_ROTATE_0:
acquire_bus(g);
write_index(g, 0x36);
write_data(g, 0x08);
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_90:
acquire_bus(g);
write_index(g, 0x36);
write_data(g, 0x68);
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
case GDISP_ROTATE_180:
acquire_bus(g);
write_index(g, 0x36);
write_data(g, 0xC8);
release_bus(g);
g->g.Height = GDISP_SCREEN_HEIGHT;
g->g.Width = GDISP_SCREEN_WIDTH;
break;
case GDISP_ROTATE_270:
acquire_bus(g);
write_index(g, 0x36);
write_data(g, 0xA8);
release_bus(g);
g->g.Height = GDISP_SCREEN_WIDTH;
g->g.Width = GDISP_SCREEN_HEIGHT;
break;
default:
return;
}
g->g.Orientation = (orientation_t)g->p.ptr;
return;
default:
return;
}
}
#endif
#endif /* GFX_USE_GDISP */

18
drivers/gdisp/KS0108/gdisp_lld_config.h
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@ -0,0 +1,18 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
#ifndef _GDISP_LLD_CONFIG_H
#define _GDISP_LLD_CONFIG_H
/*===========================================================================*/
/* Driver hardware support. */
/*===========================================================================*/
#define GDISP_HARDWARE_DRAWPIXEL TRUE
#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_MONO
#endif /* _GDISP_LLD_CONFIG_H */
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